diff --git a/internal/statetransition/state_transition_test.go b/internal/statetransition/state_transition_test.go
index 2c0f1f2..dd47655 100644
--- a/internal/statetransition/state_transition_test.go
+++ b/internal/statetransition/state_transition_test.go
@@ -625,7 +625,7 @@ func TestCalculateNewCoreAssignments(t *testing.T) {
 			currentTimeslot,
 			state.EntropyPool{},
 		)
-		require.ErrorIs(t, err, ErrCredentialVerificationFailed)
+		require.ErrorIs(t, err, ErrWrongAssignment)
 		require.Nil(t, newAssignments[0])
 	})
 
@@ -692,7 +692,7 @@ func TestCalculateNewCoreAssignments(t *testing.T) {
 			currentTimeslot,
 			state.EntropyPool{},
 		)
-		assert.ErrorIs(t, err, ErrCredentialVerificationFailed)
+		require.ErrorIs(t, err, ErrWrongAssignment)
 		require.Nil(t, newAssignments[0])
 	})
 }